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Poultry quick-freezing method

A poultry and poultry technology, applied in the direction of freezing/cooling to preserve meat/fish, etc., can solve the problems of high liquid nitrogen consumption of box-type quick-freezing machines, large consumption of liquid nitrogen, and difficulty in controlling the taste, so as to improve the cooling effect and reduce consumption , Reduce the effect of liquid nitrogen consumption

Inactive Publication Date: 2020-11-24
广州极速制冷设备有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] In addition, the existing tunnel quick-freezers and box-type quick-freezers need to consume a lot of liquid nitrogen whether they are quick-frozen poultry, beef, pork, grains, or shelled fruits. Generally speaking, from the perspective of efficiency, the tunnel quick-freezer A ton of frozen products needs about 1.5 tons of liquid nitrogen, and the liquid nitrogen consumption of the box-type quick-freezer will be slightly higher. The price of liquid nitrogen is 600-1000 yuan / ton according to seasonal factors, which is the main consumption of consumables
[0008] Finally, after quick-freezing chicken and duck meat through traditional quick-freezing machines, it has been difficult to control the taste after thawing. In many cases, there will be a phenomenon of bad taste. It is necessary to strictly control the quick-freezing time, the amount of liquid nitrogen, and pre-cooling.

Method used

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  • Poultry quick-freezing method

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Experimental program
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Embodiment 1

[0034] A method for quick freezing of poultry, the method is specifically:

[0035] Step 1: Inject atomized liquid nitrogen into the body cavity of the inverted poultry;

[0036] In this step, avoid that most of the liquid nitrogen first comes into contact with the epidermis of poultry. Instead, atomized liquid nitrogen is injected into the body of the poultry, so that the muscles of the poultry are first contacted with the liquid nitrogen, so that the body cavity of the warm poultry that has just been removed from the internal organs is quickly cooled and the heat inside the muscles is discharged. This method , The taste of the thawed poultry meat can be kept as similar as possible to the meat quality of fresh poultry; at the same time, this method can also reduce the amount of liquid nitrogen.

[0037] Step 2: Inject compressed gas into the body cavity of poultry;

[0038] This method can be used for tunnel-type liquid nitrogen quick-freezers and box-type quick-freezers, preferably...

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Abstract

The invention belongs to the field of cold chain processing, and discloses a poultry quick-freezing method. The poultry quick-freezing method specifically comprises the following steps: step 1, injecting atomized liquid nitrogen into a body cavity of inverted poultry. According to the method, the liquid nitrogen is atomized and then injected from the body cavity of the poultry, so that the consumption of the liquid nitrogen is reduced, the meat quality and taste of the poultry are better, meanwhile, pre-cooling is not needed, and one step in a traditional process is omitted.

Description

Technical field [0001] The invention relates to the field of cold chain processing, in particular to a quick freezing method for poultry. Background technique [0002] Chinese patent application CN200920016455.7 discloses a kind of refrigeration equipment, especially a tunnel type quick freezing machine. It includes a warehouse body supported on the rack, a conveyor belt for transporting frozen items, and an evaporator connected to the refrigeration system. Fans are arranged in the warehouse body, and the air outlet of the fan points to the conveyor belt. Upper nozzles are arranged above the upper part, and lower nozzles are arranged below. [0003] Chinese patent application CN201520539277.1 discloses a container mobile double-layer tunnel liquid nitrogen quick-freezing machine, including a quick-freezing tunnel, a container and a double-layer tunnel system. The quick-freezing tunnel includes a tunnel upper cover, a tunnel lower cover, a lifting device, and a fan , A liquid nitr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A23B4/09
CPCA23B4/09
Inventor 逄锐侯光献
Owner 广州极速制冷设备有限公司